The GA series is designed to tilt a plate, platter, or shallow bowl back slightly. All measurements in inches Product Number Height Width Depth Thickness Price GA12 12 10 9 3/4 1/8 $9.35 GA12T 12 10 3 3/4 3/8 $13.50 GA15 15 12 1/2 12 1/8 $13.50 GA15T 15 12 1/2 12 3/8 $18.25 GA18 18 15 1/4 14 1/4 1/8 $24.00 GA18T 18 15 1/4 14 1/4 3/8 $32.00 GA3 3 2 1/2 2 1/4 1/8 $1.95 GA4.5 4 1/2 3 1/2 3 1/2 1/8 $2.75 GA6 6 5 1/8 5 1/8 $3.60 GA7.5 7 1/2 6 3/8 6 1/4 1/8 $5.75 GA9 9 7 1/2 7 1/4 1/8 $7.75