Combo model comes with both Digi-Sert and Supp-A-Sert attachments, either of which lock into the plastic handle while on the hand.
Supp-A-Sert features a spring-loaded tip which expels suppository only when inserted to proper depth.
Digi-Sert digital bowel stimulator features 1/2" in diameter tapered Delrin tip with moveable retaining washer which adjusts for depth of penetration...