Specialist Material: Silica Sand Source: Quarried Size: 0-2mm Washed: Twice Chemically Washed Material: Rubber Chippings Source: Recycled Rubber Size: 10-30mm Washed: No Material: Cotswold Chippings Source: Quarried Size: 10-20mm Washed: Yes Material: Self Binding 10mm Gravel Source: Quarried Size: 0-10mm Washed: Yes