PROHANDS Gripmaster Hand Exerciser, Finger Exerciser (Hand Grip Strengthener), Spring-Loaded, Finger-Piston System, Isolate & Exercise Each Finger

Je vais essayer de vous donner mon avis le plus objectif possible. Très bon produit qui sent la qualité à plein nez! J’ai eu une rééducation de la main gauche pendant 1 an et j’avais besoin d’un produit pour remuscler ma main. Ce genre de produit peut être idéal pour des professionnels ayant besoin d’une grande puissance et contrôle sur chaque doigt. Le fait que chaque doigts a son propre mécanisme le rend parfait pour un trompettiste ou saxophoniste et autres... La prise en main est vraiment très bonne, et s’adapte parfaitement à une bonne prise pour forcer dessus. Je recommande vivement! Si mon commentaire vous à aider dans votre choix, n'hésitez pas à mettre un petit "j'aime"! ;) Merci d'avance.

良い製品です。

Works well

Griper bien construido y duradero, útil para rehabilitación y fitness. Si quieres mejorar el agarre te tienes que ir a grippers más sólidos como Captain of Crush o similares .

I bought this because of a recommendation from another climber. We both started climbing at the same time, and I noticed after half a year that his handgrip endurance was a lot better than mine. I asked if/how he trained grip, and he recommended the Gripmaster Black. If you are in your first year of climbing, or if you have injured a finger and cannot hangboard, then I would recommend Gripmaster. You can use it in various ways, but it will mainly improve 'crimp' (small edge) strength. Firstly, you will probably learn that your pinky needs a lot of work. Once you can crimp the individual fingers and hold it for 10-20 seconds or more, you can then use it to develop pinch strength. The device is a little wobbly when pinching, and you should be careful. It is not ideal for pinching, as it is small when compressed, and this is not how you will usually pinch when climbing. If you buy a colour that is too easy, you can use it for pinching. If the colour is hard then it is good for crimping. It is difficult to say which colour/resistance you should buy. I think black is a good start. It is not too hard, but not too easy either. There are Gripmaster Pro editions and these have two higher difficult. The most difficult is the brown, which I also own, and it is difficult to fully compress. I weight around 170lbs (77kg) and I can two-handed dead-hang from a small edge (crimping) for 10 seconds or more. If you can do one-handed crimp or anything of that level, then you probably do not need a Gripmaster for anything other than warm-up or helping recovery when you have injured a finger. I do think these can help recovery, and they are good for warming up the fingers before you do anything more difficult. I would consider them very safe to use, with the exception of using them for pinching -- there is unsafe wobble when pinching the device.