One 8-pack of squares fits nicely inside a 10" x 20" tray. 

Specifications

• Length / Width :5.25" x 5.5"
• Height :3.13 in / 7.94 cm

BENEFITS 

• Economical and durable 

• Vertical grooves encourage vertical root growth

• Square design allows more pots in the same amount of space 

• Flexible sides for easy transplanting without damage to the plant or pot