Boards are made of 1" thick high density polyethylene (HDPE) with excellent chemical resistance, easy-to-clean, solid work surface. Magnetic Base System includes corner magnets for holding metal accessories and recessed steel bars for use with magnetic accessories. Grace Procedure/Dissection Board w/ Magnetic Base System (GPM1) Non-skid feet for added stability. Size: 12" (L) x 8" (W) Grace Procedure/Dissection Board w/ LED, Magnifier, & Magnetic Base System (GPM2) Two Flexible LED lights - provides direct illumination with no shadows and no heat. Flex arm, non-obstructive rimless magnifying glass (main lens: 2.3X, inset lens: 4.0X). (Allows continuous eye contact with object when moving into magnification area). Non-skid feet for added stability. Universal input power supply (100 – 240 VAC, 50-60 Hz). Size: 12" (L) x 9.5" (W).