Excellent quality - The spiked T-shirt is made of high-quality engineering PE material, which is durable and wear-resistant even when used outdoors in sunlight, and can be used for a long time. No leakage - These spiked T-joints are designed with locks to keep the fittings locked. The lock adds additional fixing force and sealing to the pipeline, preventing leakage. Easy to install - no need for glue, tools, or fixtures, very easy to operate, and can be easily loosened from the pipeline when needed. Press the hook tee into the pipe. Lock the pipe with a nut. High performance - Drip irrigation three-way lock has high stability, compact structure, sturdy waterproof, high strength, and low fluid resistance. A practical water pipe joint. Widely applicable - very suitable for use with elevated garden beds, residential buildings, farms, urban greening, greenhouse gardening, vegetable greenhouses, and agricultural watering applications. Project type: 16mm tee Material: PE Weight: Approximately 550 grams/19.4 ounces Product size: approximately 9.3x6cm/3.7x2.4 inches Connecting pipe diameter: approximately 16mm/0.6in Purpose: Connecting hoses Scope of application: Urban greening, greenhouses, gardens, flower and vegetable greenhouses, etc. Packing list: 20 pieces