Pro Tie mini key worm drive hose clamps are precision made from stainless steel to provide dependable and long lasting use. The 5/16-Inch wide band provides an excellent seal with a variety of hose materials and yet is small enough to fit into tight places. The plastic turn key allows for hand tighten of the clamp for repeated installation/removal or just quick installation without any tools.. All stainless steel construction provides superior corrosion resistance. Pro Tie hose clamps will work on a variety of applications from home use, auto repair, marine, plumbing, farm, ranch, and industrial.