Patio Door Roller Wheels Product 5/6 ← ↑ → Slimline Patio Door Roller Wheels £17.45 Ex VAT£20.94 Inc VAT Qty: larger image larger image The height of the wheels can be adjusted by turning a screw in the end of the casing. These roller wheels are supplied in twos; the price is for two. Model: BGSL Manufactured by: Various