Twin Bath Tissue Roll Dispenser for OptiCore, 11.06 x 7.18 x 8.81, Black. Tork® Twin Bath Tissue Roll Dispenser for OptiCore® system holds two rolls of patented OptiCore® tissue. Designed for controlled-use dispensing and optimum savings in maintenance time and costs, this dispenser features an enclosed, front-facing design to keep tissue clean and hygienic, but easily accessible. Made of high impact, durable plastic. For Roll Size: 5.63" Diameter; Roll Type: Bath Tissue with OptiCore®; Capacity (text): Holds Two Rolls; Color(s): Black.