The Ptezl SM'D TWIST LOCK is a compact and lightweight D-shaped locking carabiner for use in a variety of vertical situations.

Easy to handle even with gloves thanks to its H-shaped section, this carabiner is made of aluminum. Weighing 51 grams, it has a 20 mm opening and a D-shape that makes it easier to grip, while its Screw-lock system adapts to the user's needs. This system is particularly suited to harsh environments where dirt (mud, frost) could jam an automatic locking system.