

Introduction
● Size: TT10, TT15, TT20, TT25, TT27, TT30, TT40, TT45, TT50
● Made of S2 alloy steel through quenching, with center holes
● Matted chrome-plating treatment, stylish in appearance, strong rust-proof
● Hex keys easy to access and hard to fall off
● Butterfly-shaped cover, more fashionable in design