We offer two types of silicone:

• Medium is strong enough to stand up on its own, but still compresses somewhat. It has a Shore A hardness of 10.
• Hard feels much like a real penis, and works best for smaller toys. It has a Shore A hardness of 20. For comparison, rubber bands have the same level of hardness.

How our silicone compares to others:

• Firm is comparable to Bad Dragon’s Firm (Hardness A8), and Tantus’ Super Soft line.
• Hard is comparable to Doc Johnson’s realistic line of toys.

https://shevibe.com/blog/how-firm-is-the-dildo-i-want/ is a good list of various toys and their hardness, and is a good starting point to get a sense of what you want.