Chain link Gate Spring Closer 1-3/8" X 2-1/2" For use in light Residential 3 ft, 4 ft and 5 ft gates only. Meets Pool Codes. Will allow gate to swing both ways Fits Round Gate Frame 1-3/8" X 2-1/2" Post. Works with Auto Latch 1-3/8" X 2-1/2" For Auto Pool Latch 1-3/8" X 2-1/2"" for Pool Chain Link Fence Gate Easy to install on all standard gates, even on existing gates