Oval Drop Out Slump Mold - Dimensions: 14" x 11" (inside:10.75" x 6.75"). - This is a Slumpy's original Drop Out mold useful with kiln slumping applications. Support mold with kiln posts or Slumpy's Tri-sized kiln blocks. Your glass will "drop" in the mold hole and create bowls and vases. Fuse beautiful glass art pieces. ** Skill Rating: Medium