Ratcheting Open End Alden Wrenches - Unique spring loaded slip jaw design allows these wrenches to ratchet with only 30 degrees of swing while increasing grip as force increases. The quality stainless steel construction and slightly wider jaw makes these wrenches rugged and durable. Three pc. double ended set. Fits 10, 12, 13, 14, 15 and 17mm. Imported from China. Lifetime Manufacturer's Warranty.