These golf tees are strong and hard like other golf tees but are bio-compostable meaning they will biodegrade within 45-90 days in microbially-active soils. There's no wood or paint used to make these golf tees, just a bioplastic resin made from wheat. They meet American Society for Testing and Materials standards for compostable plastics, as tested by an independent laboratory. You can see laboratory results for this product by clicking here. Since they are bio-compostable they do not need high temperatures to break down like some other bioplastics. The manufacturer states they will biodegrade in microbially-active soil in 45-90 days. I buried a comb made of the same material in a corner of my flower bed. A month later there was no trace of it. Please choose from standard length (2 1/8 inch) pack containing 65 tees or long length (2 3/4 inch) pack containing 50 tees. Made from wheat in Nebraska.