Rain Bird MSSTKTQ1S Drip Irrigation Micro-Spray on Adjustable Height Staked Riser with 1/4" Tubing and Barbed Coupler, 90&deg; Quarter Circle Pattern, 0 - 10' Spray Distance Directs water exactly where you need it in a wide variety of planting areas Distributes fine water droplets in a 90 quarter circle pattern; adjustable from 0 to 10 spray distance Adjustable height 18" staked riser includes pre-attached 36" length of 1/4" Drip tubing and barbed fitting Sharp, self-piercing barb inserts directly into all 1/2" or larger Drip irrigation tubing Offers finger-tip flow and distance control with a shut-off option Ideal for any closely spaced plants in areas such as: gardens, mass plantings, landscapes etc. Constructed of highly durable UV and chemical-resistant materials to assure long life