San Jamar’s smart system with iQ sensor technology offers the versatility and reliability of the smart system – paper and length delay adjustment, downloadable usage to PDA, replaceable drive module, auto-transfer. Touchless design reduces the risk of cross-contamination. Infinity system automatic transfer eliminates stub roll waste. 1-1/2″ diameter core size. Holds one 8″ diameter roll and one 4″ diameter stub roll. Requires four D alkaline batteries (sold separately). Black pearl color break-resistant plastic.