Box - Plastic. These sets contain 4...
PVC bases 40x15mm 18 bases per pack
Bag of 14 bases 40mm x 30mm of PVC
Bag of 12 bases 40mm x 40mm of PVC and 2mm thick
Bag of 16 bases 40mm x 20mm of PVC and 2mm thick
Bag of 10 bases 60mm x 40mm of PVC and 2mm thick