Optional Accessories: We offer a wide range of quality accessories for exterior blinds. Please check our product page. Wide Compatibility: Compatible with almost most exterior roller blinds. Sturdy: The end cap design has been improved. The bottom tube cap triples its strength and durability. Waterproof: All plastic parts are made of high-quality plastic with added anti-aging substances, which will hold up even after 2 years of sun exposure in California, Arizona, and Texas. Installation: Installing the accessories is simple. It takes up to 10 minutes and you will have your new shades High Quality The elastic is made of high quality rubber, which offers excellent elasticity and durability. Effectively resists stretching and compression, and is not easy to break or deform. Weather Resistant The bungee cord is covered with a weather-resistant polyester protective layer. This gives it extra durability and protects it from damage caused by sun, rain, and weather exposure. Hand Tied We use