EZ White Snap Clamp 1/2 Inch X 4 Inches Wide For 1/2 PVC Pipe 10 per Bag EZ snap clamps, for frequent use (use HD clamps for long term use) ABS clamps have higher temperature resistance and gripping strength Compatible with any type of pipe, including PVC (see description for sizing) Excellent for building greenhouses, row covers, shelters, quilting frames and more Holds material on tubular frame