The unique TEXAS STAR Patented Design and uncompromising quality has pushed this plate to the forefront. Made with premium all-natural virgin rubber, these Olympic plates will always maintain a bold solid color throughout the lifetime of the plate. The precision tooled stainless-steel inserts allow the plates to slide freely on the bar. You can purchase with confidence knowing XMark is a trusted brand found in schools, gyms and homes across the United States. Long-lasting quality is what you can expect from XMark. XMark warrants the TEXAS STAR plates to be free from manufacturer's defects in materials and workmanship, under normal residential use and conditions, for a period of one (1) year from the original date of purchase. Any noticeable odor after unboxing will dissipate.