Excellerations, Sensory Gel Bead, 6 Emotion Discs, 15 Activity Cards, Ages 3+ Square D The 1 inch diameter with 17 1 2 inch 1m The 1 inch diameter with 17 1 2 inch length provides extended reach for deep boring tasks in wood and composite materials 325D FM 329D LN 328D LCR 330FMHPU 329F L 325D FM LL 335F LCR 329D L 325D L 324D FM 324D 324E 326D2 330F OEM 325D MH 329E LN 326D L 324E L 326F L 335F 323F 330F 330D2 329E L 329D2 L 325C L 322C FM 326F 324D LN 322C 329D2 325C FM 330D2 L 324E LN 330F L 329D 329E 330F LN 326D2 L 324D L 325C 326F LN 325D paired with fifteen activity cards to guide interactive play and imaginative exploration through hands on learning