【Universal Fit】: Fits 1.9-inch pool ladder tubes. Universal fit for standard pool ladders with an inner diameter of 1.9 inches. This is the standard size for pool ladder tubes. 【Size】: Outer width: 7 cm, inner width: 4.8 cm, height: 2.5 cm. Outer diameter: 5.7 cm, inner diameter: 4.6 cm. The outer diameter of 5.7 cm is for the rubber bumper base, the inner diameter of 4.6 cm is for the part that inserts into the pool ladder tube. A slight taper ensures a snug fit and allows for easy removal if necessary. Durability: High-quality, thick, and durable molded white rubber ensures this pool ladder bumper can be used for longer without cracking, warping, or loosening. Protect your pool's vinyl liner with a reliable rubber bumper that will last for many pool seasons. No need to wait to replace cracked, brittle, or loose bumpers. 【Application】These pool ladder bumpers provide cushioning between the metal ladder and your pool wall. The rubber ladder tips prevent damage from the railing