making it more durable

The Red Descender Plate has a maximum breaking strength of 20KN

[LOCK CARABINERS]: Foot Ascender Loop with1 carabiner hooks

but it also is the most compressible insulation available

Side swing side plates are also made of aluminum

NewDoar 8 Descender Downhill Equipment Rigging Plate 35kN Rescue-Black Color:Black making it more durable[Material]: A7075 Aviation aluminum alloy and Magnesium Alloy Forging, Surface Anodized Oxidation. The figure 8 descender is excellent in lightness and high strength. [SPECIFICATION ]: Maximum tension: 35KN(7700lb). Suitable for 8 13 mm rope. Sizes: 5. 15inch(14. 6cm)* 2. 95inch(7. 5 cm); Weight: (0. 26Ib)120g. [BRAKINGRESISTANCE]: Breaking strength7700lbf (35KN 3500kg). to maximize reducing rubbing between the rope and the figure 8 belay device, for