DWSMRKCAPS Rack Tube End Caps (2 Pack) Give your Rack the Complete and Finished Look By Capping the Ends of those Rack Bars. Protect your rack and add a sleek finish with DW Rack Tube End Caps. These durable caps fit perfectly on the ends of your rack bars, ensuring a complete and polished appearance. Made with quality materials, our end caps provide the perfect solution for a tidy and professional setup.