End cap for railings has more fucntions than just cover the handrail up. For model R2.1800.042, with a pin and plate you are able to connect them together to get a handrail support. Techonically we should call this model a support accessories instead of an end cap.end caps for tubing price
website:http://www.raisingbalustrade.com/railing-systems/handrail-end-caps/