Durable Rubber Objective Lens Caps

These objective lens caps measure 12.0 x 6.0 x 1.0 cm (4.72 x 2.36 x 0.39 inches) and are made from premium rubber material for long-lasting use. They weigh very little and feature a compact, portable design ideal for field use. The caps are engineered to fit binoculars with an objective lens outer diameter of 45.40 mm and inner diameter of 51.71 mm; eyepiece dimensions are provided for reference only (inner 41.11 mm, outer 44.88 mm). Their high-durability rubber construction resists deformation and maintains shape over repeated use. Designed for practical daily protection, they safeguard lenses from scratches, dust, and accidental bumps without interfering with optical performance. Installation and removal are quick and tool-free — no adjustment or alignment needed.