It's difficult to improve on the superior shape of Wild Country Wired Rocks; used and abused since 1979, the taper in the body of each piece permits Rocks to be placed into a broad variety of cracks.

Features:

• Engineered to self-stabilize inside cracks with a convex side that locks firmly against the feet and slightly tapered for easier slotting and turn-keying into pockets
• Anodizing color codes them for a quick ID

Specifications:

• Range (mm): 7 - 13 (1); 8.2 - 13.8 (2); 9.6 - 14.5 (3); 11.3 - 15.3 (4); 13.3 - 16.8 (5); 15.6 - 19 (6); 18.4 - 21.2 (7); 21.6 - 24 (8); 24.4 - 27.7 (9); 30 - 31 (10); 34 - 35 (11); 38 - 38 (12); 41 - 44 (13); 45 - 50 (14)
• Weight (g): 16 (1); 25 (2); 28 (3); 30 (4); 32 (5); 36 (6); 36 (7); 41 (8); 49 (9); 60 (10); 70 (11); 81 (12); 94 (13); 109 (14)
• Strength (kN): 7 (1); 12 (2); 12 (3); 12 (4); 12 (5); 12 (6); 12 (7); 12 (8); 12 (9); 12 (10); 12 (11); 12 (12); 12 (13); 12 (14)