Greenhouse Equipment Home / Greenhouse Equipment / ALM Shading & Insulation Fixers - Pack of 20 ALM Shading & Insulation Fixers - Pack of 20 ALM Shading & Insulation Fixers - Pack of 20 £2.70 RRP: £3.70 Add to your Wish List Information Slots into the glazing bar and acts as a spacer between the glass and shading. The hole is used for tying, straining wires etc Suitable for most aluminium greenhouses