... 1. Material: Clear Acrylic 2. Half A Ball Shape, no frange 3. Applied ... exactly half of the diameter.so when put together, make a perfect sphere. Modulus Distortion: <=0.3%Transparency: ... , prototypes, school projects, display bubbles, etc. Welcome Make sure you specify outside dimension,dome size, flange width, ... material thickness and color!Please be advised that material thins when vacuumformed Cases :