Koehler EZ clamps feature a unique design which allows the clamp to be tightened by hand without the use of any tool. Use the convenient EZ handle to tighten to hose clamp by hand. Remove the EZ handle after tightening for a tamper resistant connection and seal. EZ handle hose clamps can be removed and reused. Includes a stainless steel band and housing, plated screw and plastic EZ handle. This 6 piece multi-pack includes 2 pieces each of size SAE 4, 6 and 20 hose clamps with a clamping range from 1/4 inches to 1- 3/4 inches.