Kleva Built
Forearm Finisher
Buy Now · $139.97The Forearm Finisher is a single-purpose isolation tool for wrist extensor training. Instead of gripping a bar or dumbbell (which loads the finger flexors and often fails before the extensors do), the user’s hands are clamped into a padded top bar, removing the grip element entirely and letting the wrist extensors work through a longer, uninhibited range of motion. It loads with standard 25mm or 50mm Olympic plates via an adaptable pin, and the unit is height-adjustable to fit different hand sizes.
Reviewers consistently confirm it does that one job well: GymRadar’s 5 tracked user reviews (4.2/5 average) and multiple YouTube reviews describe noticeably stronger extensor contraction than dumbbell-based wrist extensions allow. It’s marketed heavily to climbers, who are prone to flexor/extensor imbalance and elbow strain from finger-flexor-dominant grip training. The tool can also be flipped for wrist curls, but every reviewer who tried both agrees curls are a secondary, less effective use – one GymRadar reviewer managed only about 10 lb of resistance for curls on the device versus 60 lb with an EZ-curl bar, and a YouTube reviewer (Zack Istre Fitness) warns that loading it heavily for curls pushes the weight pin loose. That single-exercise focus is also the main knock on value: at a roughly $140-150 price, the same reviewer rated its value 3/10 given that dumbbells or barbells can train the same muscle, just less completely.
| Weight | ~3.6 kg (~8 lb) |
|---|---|
| Material | Steel frame with high-density foam padding |
| Warranty | 2-year manufacturer warranty against manufacturing defects |
| Dimensions | ~40 x 30 x 12 cm |
| Adjustability | Height adjustable to fit different hand sizes |
| Primary exercise | Wrist extension (isolated, no-grip) |
| Secondary exercise | Wrist curls (supported, but reviewers report reduced capacity/stability vs. a barbell) |
| Plate compatibility | 25mm and 50mm Olympic weight plates (adaptable loading pin, bar collars for both included) |
How it compares
| Forearm Finisher | Wrist and Forearm Blaster | Barbell Grips 1.77” | Great Ape Grips | |
|---|---|---|---|---|
| GymRadar rating | 4.2/5 | 4.11/5 | 4.11/5 | 4.33/5 |
| Price | $139.97 | $15.99 | $49.95 | |
| Weight | ~3.6 kg (~8 lb) | 1.5 lbs | 1,361 g (approx. 3 lbs) | |
| Material | Steel frame with high-density foam padding | Steel core with nylon webbing cord | Silicone rubber | Neoprene shell with internal glove |
| Warranty | 2-year manufacturer warranty against manufacturing defects | |||
| Dimensions | ~40 x 30 x 12 cm | 14.8" x 1.3" (handle length 5.7") | ||
| Adjustability | Height adjustable to fit different hand sizes | |||
| Primary exercise | Wrist extension (isolated, no-grip) | |||
| Secondary exercise | Wrist curls (supported, but reviewers report reduced capacity/stability vs. a barbell) | |||
| Plate compatibility | 25mm and 50mm Olympic weight plates (adaptable loading pin, bar collars for both included) |
Reviews by source
| Expert | 4.2/5 | 5 reviews | |
| Youtube | 4.0/5 | 2 reviews |
The Forearm Finisher does one job very well: isolating the wrist extensors by taking grip out of the equation, and reviewers across GymRadar, YouTube, and retailer feedback consistently credit it for reaching failure in that muscle group that dumbbells can’t reach. Build quality is generally solid — steel construction with foam padding and dual 25mm/50mm plate compatibility — though one retailer reviewer found it “wobbly and uncomfortable on the back of the hand over time,” a comfort complaint worth flagging. Value is the weakest dimension: GymRadar reviewers rate it lowest on that axis (3.4/5) at a ~$140-150 price for what one YouTuber bluntly calls “a one-trick pony,” and its secondary use for wrist curls is noticeably less effective than its primary extension work per multiple reviewers.
- +Functionality: uniquely isolates the wrist extensors without grip fatigue limiting the set (GymRadar, manufacturer)
- +Functionality: lets lifters go further into wrist extension than grip-limited dumbbell/EZ-bar setups allow (GymRadar reviewer)
- +Build quality: steel construction with foam padding and dual 25mm/50mm plate-pin compatibility (manufacturer, MaxClimbing)
- +Build quality: height adjustable to fit different hand sizes (manufacturer)
- −Value: lowest-rated dimension on GymRadar (3.4/5) at a roughly $140-150 price point (GymRadar)
- −Versatility: a single-purpose tool — one reviewer calls it "a one-trick pony" (YouTube: Zack Istre Fitness)
- −Versatility: usable for wrist curls but noticeably less effective there than for extensions — one reviewer could manage only ~10 lb on this device versus ~60 lb with an EZ-curl bar (GymRadar)
- −Build quality: one retailer reviewer found it wobbly and uncomfortable on the back of the hand over extended use (MaxClimbing)
- −Durability: no long-term wear reports yet in available coverage
$139.97
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