Set of 24 new aerator core tines. They replace part number 10-0260. Compatible with Quad-Aer 3000 Gen 1 S/N 00001-29999, Gen 2 S/N 30000-39999 and Gen 3 S/N 40000-current. It requires 48 tines. Also fits Quad-Aer 3600 Gen 1 S/N 00001-29999 and Quad-Aer 3600 Gen 2 S/N 30000-39999. The 3600 requires 56 tines. Length: 7", 1/2" closed spoon, Square Hole: 3/8".