Regarding the specific product you mentioned, Stonefox Medical, I couldn't find any information on a company or product by that name. However, there are various medical device manufacturers that produce rectal syringes and enema kits.

: High-quality, non-toxic materials like natural rubber latex or silicone are typically used. Useful Medical Review

It is typically crafted from non-toxic, high-quality natural rubber or silicone, accompanied by a soft plastic nozzle to ensure comfort.

Stonefox Medical Rectal Syringe (often referred to as an enema bulb or clyster) is a device used for rectal douching, colon cleansing, and the relief of occasional constipation. These syringes are typically made of durable, eco-friendly rubber and feature a smooth, non-barbed tip designed for pain-free insertion. They are used to inject fluid directly into the lower bowel to stimulate a bowel movement or deliver medication. Cleveland Clinic How to Use a Rectal Syringe