The product is a Michelin Pilot Sport 4S tyre with a size of 305/30 R21 and a tread depth of 6.3mm. It has a speed rating of Y, which allows for speeds up to 186 mph. The tyre is designed for high-performance vehicles and has a load index of 98. Made by Michelin, this tyre is a top choice for those looking for quality and durability in their car's tyres.