ITEM NAME:2 Pack Water Fillable Bases Only for Balloon Column Stand Birthday Wedding A9C2 ☆★ Product Details ★☆ 2 Pack Water Fillable Bases Only for Balloon Column Stand Birthday Wedding A9C2 For outdoor you need a bit heavy stuff fill up the bases, EASY TO USE - There is no trick or complicated instruction for using these bases. The Best Bases to DIY a Balloon Column Stand with Unique Style Fillable Material: Water, Salt, Sand, Metal Beads etc. Product Weight WITHOUT Water: 7.05 oz Product Weight After Filled WITH Water: 2 lb colour: White Material: plastic size: Diameter: 21cm Aperture: 2cm Package Contents: 2x Balloon arch base Note: Light shooting 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.