1.  The body of a vibration isolator is made of irons which surface is processed by extra hardness powder spraying/baking to persist in corrosion resistance. 

2. This product has the excellent feature in structure compact and strength, and installation easiness.  In addition, there is an opened hole at the bottom of a frame structure where allows a hang rod with 30 degree swing.
3. The internal rubber ring is inserted to the hanging frame for the effectiveness of noise isolation.