8pcs Folding Ball Point Hex Key Set 8pcs Folding Ball Point Hex Key SetItem NoBoxCONTENTWLHR-1436 pcs1.5,2,2.5,3,4,5,6,8mm Made of Chrome Vanadium Steel, Fully Hardened and Tempered,Hexagonal Ends to Fit into Nuts.The ball is Designed to Work in 25° Range,Its Well Used in Narrow Space