SQUEEZE Soft-Grip Ballstretcher Unique hourglass shape grips tighter in the middle where you want the most when stretching, but with a soft grip. The ends are thicker so they wont dig or pinch. Inside are two thin raised rings that keep this stretcher where you put it. Made of FLEX tpr. Phthalate Free. Safe with most lubes, oil-based lube not recommended

Steel