1. Material: stainless steel 2. Weight: M10 is about 54.5 grams, M8 is about 58 grams 3. Size: M10 is about 5.4 cm, M8 is about 6 cm 4. Applicable pulling force: 25KN (about 2500 kg) 5. Aperture: M10 (10mm), M8 (8mm) 6. Scope of application: top fixed fulcrums for caverns, rappelling, rescue, engineering protection, high-altitude operations, indoor rock climbing, etc. 7. Features: made of stainless steel, high bearing capacity, wear resistance, corrosion resistance, durable, safe and reliable