>>9265
Maybe the extra tiny ones like the nubs or the flat ones or the actually possibly damaging ones like the inverted flat ones that have a peg that literally inverts your penis back into your body.
Normal cages shouldn't do anything and neither should your hand applying firm pressure assuming you're not death gripping it.
The penis stops engorging with blood when it encounters resistance, it's why your dick won't break if you get a straight out boner wearing jeans.