Check the listing for details. 4 Pack Poly Covers w/ Brackets for 3", 4", 6 5/8" Cantilever Gate Rollers 🔒. Condition: Open box. Listed at 50.00 USD. The 4 Pack Poly Covers with Brackets by Threlaco is designed for 3", 4", and 6 5/8" Cantilever Gate Rollers. These poly covers provide comprehensive safety features with a versatile fit and universal coverage. Made with UV-protective polyethylene, they are weatherproof and flexible, ensuring reliability with a steel mount. Each cover measures 8.74" in height and 4.3" in length, offering a polyethylene shield for added security. Ideal for home and garden use, this product is a practical and durable choice for yard fencing and privacy screens.The 4 Pack Poly Covers with Brackets by Threlaco is designed for 3", 4", and 6 5/8" Cantilever Gate Rollers. These poly covers provide comprehensive safety features with a versatile fit and universal coverage. Made with UV-protective polyethylene, they are weatherproof and flexible, ensuring reliability with a steel mount. Each cover measures 8.74" in height and 4.3" in length, offering a polyethylene shield for added security. Ideal for home and garden use, this product is a practical and durable choice for yard fencing and privacy screens.