60MM SKS7 Rotary Cutter Blades for Quilting fits Olfa Fiskars DRITZ Clover Pack of 10 (1 PACK) Size: OD60*ID10*T0.3mm,triple-notch center hole. Material:high quality Germany SKS-7 tooling steel. Package: 10pcs one plastic box. Double sharpened cutting edge,pretty sharp and durable. Shipping: ePacket to USA,8-12days;standard shipping to others,22-30days,with track number.