Material: elastic nylon mesh + high quality ABS frame

【Size】: trumpet (S): 150mm (total length) * 80mm (high) * 10mm (thick)

                         Medium (M): 171mm (total length) * 80mm (high) * 10mm (thick) [with screws]

                         Large (XL): 200mm (total length) * 90mm (high) * 10mm (thick) [with screws]

               Above that size are included with borders， frame width 15mm， diameter is long to be minus the two sides of the border 30mm.

                                       Trumpet (S) diameter 120MM long，

Medium (M) diameter long 141MM，

Large (L) diameter 170MM long.