Clear plastic pots are ideal for epiphytic orchids such as Phalaenopsis (the most popular species) which benefit from light getting to their root systems.
Option External Internal
9 to 12cm 110mm x 20mm(tall) 95mm x 18mm
9 to 15cm Pots 125mm x 27mm 122mm x 25mm
17 to 21cm Pots 175mm x 33mm 150mm x 30mm