PVC Yoga Mat .Non Slip Exercises Mats.Multi Color.

several rolled-up yoga mats of different colors. Yoga mats are designed to provide cushioning and grip during yoga practice. They come in various thicknesses, with thinner mats (around 3-4mm) often preferred for hot yoga due to their stability and grip, while thicker mats (6mm or more) offer more cushioning for restorative practices. Some advanced yoga mats even incorporate AI technology to provide real-time feedback on posture and alignment, enhancing the user's practice. 

The mats in the image appear to be standard, non-AI models, likely made of materials such as EVA. For those interested in making their own yoga mat, it is possible to do so with materials like cotton fabric, batting, and non-slip fabric. When a yoga mat is not available, a towel can be used as an alternative, though it might require adjusting the practice due to its slipperiness.