Standard size Pump cases measure approx. 3 1/2 inches wide by 3 inches high. They hold all pumps except for the distronic d-tron pump which is larger than standard size pumps. D-Tron Size is not available in this style. 'Double Zip' adds a new dimension to pumping! The double zipper allows you to decide which side tubing will extend from. Insulin pump cases that have pictures on them for children and adults,a large selection of girls, boys and adult designs, theres plenty to choose from. Find the perfect insulin pump case for your special someone.