Strawberry Emery Pin Cushion Strawberry Emery Pin Cushion - On the job to store and sharpen your pins and needles! Pin Cushion is filled with an abrasive mineral called "emery", which resembles fine metal shavings. The emery filling sharpens with every insertion and removal of your pins or needles. Strawberry measures approximately 2 3/4 inches (7 cm) long and 2 1/4 inches (5.72 cm) across at its widest point.