{"product_id":"gripstone-forearm-trainer","title":"Gripstone Forearm Trainer","description":"\u003cp\u003eGripstone is a black silicone ball with six sprung pins standing out of it. You wrap your hand around the ball and press the pins in with your fingers and your thumb. Each pin sits on its own carbon steel spring and moves on its own, so every finger works separately instead of the strong ones carrying the weak ones the way they do on a hinged gripper.\u003c\/p\u003e\u003cp\u003ePress, release, repeat. The springs push the pins back out on their own.\u003c\/p\u003e\u003cp\u003eThe body is faceted with shallow panels and finished in a fine matte, so it does not slide around in a sweaty hand. It is silicone, it has no moving parts on the outside, and it is silent, which is the real reason it works at a desk or in a car rather than only in a gym.\u003c\/p\u003e\u003cp\u003eOne size, one resistance, black. There is nothing to adjust.\u003c\/p\u003e\u003cp\u003eHow to use: hold it in your palm with a pin under each finger. Press them in, let them come back out, and repeat. Start with a couple of minutes a hand and build up.\u003c\/p\u003e\u003cp\u003eStop if you get pain in the wrist or the base of the thumb rather than the working ache in the forearm. If you have had a wrist or hand injury, or you get numbness or pins and needles in your fingers, see someone about it before you train with this.\u003c\/p\u003e\u003cp\u003eFree shipping, dispatched in 1 to 3 business days, and 30-day money back.\u003c\/p\u003e","brand":"Mouf","offers":[{"title":"1 Trainer","offer_id":67912839299162,"sku":null,"price":44.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/1567\/5482\/files\/gal_hand_ac5cac63-6945-49ba-b228-ed56dd6c15df.jpg?v=1793429768","url":"https:\/\/www.mouf.shop\/products\/gripstone-forearm-trainer","provider":"Mouf","version":"1.0","type":"link"}