1. Very low hardness. Adult toys made of TPE require a very soft texture, typically 0-25A, even lower than 0A. Ultra-soft hardness can provide a sensation similar to skin contact.

2. Good transparency. On one hand, this is determined by the inherent properties of the material. Additionally, transparent materials make the product look better.

3. Eco-friendly and non-toxic with minimal odor. TPE is essentially an environmentally friendly and non-toxic material, causing no allergies or irritation to the skin.

4. Surface is dry and non-sticky, a consideration based on user experience.