Eurodisc 175g Ultimate Frisbee Flying Disc 98% ORGANIC MATERIAL - WHITE the first Ultimate Frisbee Disc which is produced without OIL based plastic wheight is exactly 175g, like a regular Ultimate disc made of 98% natural resources, now as flexible as regular Ultimate discs only 2% conventional color to make it look like a conventional bright shining disc finally its NOT biodegradable material - but its recycable