Pendulum Opening Glass Transfer 2 different sized pendulum opening borders that measure 1 1/2" x 2 1/4" x 5" and 8 15/16" x 1 15/16" x 13/16". Transfers are designed to be applied to existing glass by a pressure transfer method. The ink used is temperature sensitive. Transfers may be revitalized by placing them in natural sunlight. Do not microwave!