ROBLOX 3D KEYRING/BAG TAG. CUSTOM 3D ROBLOX KEYRINGS PERFECT FOR CHILDRENS SCHOOL BAGS £4 WITH 1st CLASS POSTAGE ANY COLOUR COMBINATIONS (JUST ASK) THESE ARE MADE TO ORDER SO PLEASE ALLOW TIME TO BE MADE... COMES WITH THE METAL CLASP!!! MADE WITH HIGH QUALITY PLA PLA plastic or polylactic acid is a vegetable-based plastic material, which commonly uses cornstarch as a raw material. This material is a thermoplastic aliphatic polyester and it is the primary natural raw material used in 3D printing. PLA is a fully biodegradable thermoplastic polymer consisting of renewable raw materials. Among all 3D printing materials, PLA is part of the most popular materials used for additive manufacturing.