5/8” (40mm) and 1 1/3” (30mm)  

£3.65 for a set of 4

Adhesive 500ml  £3.99

Fabric protector 500ml  £5.99
Silicone 500ml  £5.99
Fire Screen 1000 ml  £11.50

Continuous zip  available black, white and beige  
50p per meter
Slides 18p each