Keep your hands free while you're gaming or riding a bike! The possible uses are endless. These Smoking Rings are 3D Printed using PLA Plastic Filament (Polylactic acid), a renewable bio-plastic made from corn starch! The Rings Come in 3 different sizes with an 8mm hole to hold whatever you're smoking.

• Small (16mm)
• Medium (19mm) 
• Large (22mm)