Yoga/Exercise Mat

The code BB-8300DEBL-5MM-S refers to a specific variant of the Body Sculpture Yoga and Exercise Mat. 
Product Specifications
Brand: Body Sculpture.
Type: Fitness, yoga, and pilates mat.
Dimensions: Typically measures approximately 173.4 x 56 cm or 173 x 61 cm depending on the specific regional distribution.
Thickness: 5 mm (as indicated by the "5MM" in your specific SKU), though 4mm and 6mm versions are also common.
Color: Blue (indicated by "DEBL/DBL" which typically stands for "Deep Blue").
Usage: Designed for floor exercises to provide cushioning for joints and a non-slip surface.