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Ideal for inserting into the junction where four paving slabs meet, this Wallbarn 3mm Cross-Spacer ensures their alignment and stability. As a result, you can achieve a regular paved surface even when utilising flat discs. This cross-spacer consists of two-part polypropylene components that are interlocked to form a compact cross-shape.Wallbarn cross spacers come in three thickness options: 3mm, 4mm, and 5mm. Regardless of the chosen thickness, they all guarantee effective drainage, while the spacing between the paving slabs relies on the designer's preferences.Features & Benefits: Wallbarn 3mm Cross Spacer, 3mm thickness, Inserts into the junction where four paving slabs meet, Ensures alignment and stability, Achieves a regular paved surface even with flat discs, Two-part polypropylene components interlock to form the compact cross-shapePlease note: , Please advise on the size of the spacers required.. Wallbarn 3mm Cross Spacer