Dimensions: 3.5″ x 2.5″. Suction base. Twist to lock and release. Six angle options. Tungsten steel V-grooves. Sharpens various cutting implements at 14, 16, 18, 20, 22, 24 degrees. Sharpens: Paring/fillet knives; Japanese/European knives; Kitchen knives; Hunting/Sport knives; Cleavers; Hobby knives. Clam packed.