try using a translucent shader in the material properties or gummy[colour] to fake a latex material.
You should really be looking into how to use materials before trying to make what is really quite a complex material for 3ds max.
Your silicon is too glossy and too transparent it looks more like a glass nipple.
Find some tutorials on making materials and how to configure them etc, this will make it a lot easier for you as you will struggle if you haven't done some homework.