Torque away - these four sizes cover a huge placement range and are an extremely light and versatile. These funky-shapped chocks are over-tumbled for ease of placement and removal. They are equipped with doubled extendable Dyneema slings to save a biner, runner and most importantly rope drag. Chocks generally are intuitive to place... find a constriction or taper, insert and yank on the sling. As the name implies, Torque Nuts do just that - and cam securely into place... even in mostly parallel sided cracks. Get used to their shape - which may just become your favorite - for trad craggin and also your lightwieght efficient alpine rock rack. Color anodized for quick ID. Made in the U.K.