Flower Water Tubes Size: 11 x 3.8cm, great size for single-stem flower. With 3mm opening on soft rubber-like cap, these flower tubes are flexible to hold stems of varying widths. Florist Supplies: Use the flower tubes for flowers in floral arrangements, bouquets, and table centerpieces for an upcoming 's day, wedding, engagement party, father's day, mother's day or birthday. How to use: you need to put water in the plastic tube, snap on the cap and insert the flower into the hole. Useful: The leakproof plastic cover can hold water safely without spilling or leaking, and does not need daily watering and maintenance. size: 11 x 3.8cm Material: plastic colour: transparent Package Contents: 100 x Nutrition tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.