Otter Mixed 75mm Packers are essential construction accessories designed to ensure precise positioning and alignment of windows and doors during installation. This convenient pack of 20 includes five packers in each of four thicknesses — 1.5mm, 3.2mm, 5.0mm, and 10.0mm — giving you the versatility to tackle a wide range of levelling and spacing tasks on the one job. Each packer is colour-coded for quick and easy thickness identification on site, saving you valuable time. The U-shaped design allows packers to fit neatly around obstructions such as bolts, screws, and nails, making them highly adaptable for window and door jamb installations across residential, commercial, and industrial applications. Built to last, these packers are UV stable, waterproof, and resistant to rot, shrinkage, and cracking. They can be drilled, cut, or fixed with nails, staples, or screws, and feature a 4.5mm countersink hole for a flush screw finish. A bevelled leg aids easier levelling, while their high compressive strength supports loads of up to 5 tonnes. Lightweight and straightforward to use, Otter 75mm Mixed Packers are a reliable choice for professional and trade installations alike.