These zinc alloy shelf supports have two silicone-padded jaws to securely grip glass or acrylic shelves. The lower jaw is mounted on the cabinet wall and the upper jaw slots into it, adjusting to fit 4mm to 8mm shelves. A plastic clip locks the jaw setting.

Sold in packages of four, with either an included pin sized to fit 5mm holes or a countersunk hole for mounting with a screw (not included; flathead #6 screw recommended).