Deluxe Brown Humidity Tray for PP19 or PP21 Bonsai Pots - HT15DXBrn Brown Platic Tray - Matches our PP19 and PP21 bonsai pots Inside Dimensions:16 3/4" x 12 1/4" x 1/2" Outside Dimensions: 18 1/4" x 13 1/2" x 3/4" Approximate 3/8" Lip Functions as humidity, drip or ikebana tray