Dimensions: Diameter of expansion ball: Approximately 1.7cm/0.67 inch (when not expanded). Total length: Approximately 4 cm/1.57 inch. Ideal for replacing worn or damaged toilet seat hinges. Compatible with most standard toilet seats with top fix hinges.
Universal Fit: Hibbent toilet seat screws are suitable for Universal Toilet seat and can be installed on most TOTO, Kohler, American Standard Toilets and Others.
Rubber Expandable Bungs: The expanding rubber bungs slide into the holes suitable and when you tighten the bolts they squash up in the holes making a good tight fit.
Package Including: 6 PCS(3Set) Black Expanding Rubber (with One Expandable Ball) with 5cm Length Bolt and 2 Type Stainless Steel Gasket(12 Pack). 2 PCS(1Set)Black Expanding Rubber. Extra 6 rubber gasket for non-slip function.
Extra Washers: Metal washers are stronger than plastic. And rubber washers can be used anti-slip.