During enema this colon tube creates a "plugging" effect helping you to retain more liquid without difficulty. Has multiple holes to let water in more freely. Simply hook up as an attachment to your existing enema nozzle...... IMPORTANT : Please lubricate the outside, well enough along the entire length (the bulb & tube) that will go inside you. This will help in easy insertion as well as withdrawal after use. Especially useful for those who find it difficult to retain water inside or experience leakage of fluid..... Made of soft rubber. Size 26 Fr (8.58 mm thick stem); not recommended for amateurs and those suffering from latex allergies.