7hpi Plastic Canvas - Oval Sheets (20 ratings) £2.00 Quantity: at £2.00 each 2 in stock. 0 in your basket View Basket Checkout Plastic canvas is ideal for children or crafters who find it difficult holding an embroidery frame etc. This oval shape is perfect for making unique table mats - use A4 or A3 sheets to make matching coasters. It is a clear, gridded stiff plastic mesh. Use wool to stitch your design and be creative. Oval sheets 7hpi - ie 7 holes per inch Size 12in x 18in. Manufactured by Darice.