Rainbird Tubing Stake with Bug Cap, 1/4" 1/4 in. Drip Tubing Stake Locking cap holds tubing in place Used for holding 1/4 in. Distribution Tubing (XQ) in place at the plant root zone Accepts 1/4 in. Distribution Tubing from 0.19 O.D. to 0.256 O.D Constructed of UV-resistant plastic material - Bug cap included