Swarovski 5601 Cube 4mm Rose Water Opal. Swarovski code 5601, 4mm Cube bead in Rose Water Opal. Measures 4mm x 4mm, hole 0.5mm. Here at Jillybeads we understand that some beaders can be a bit reluctant to buy online so if that is you, give us a call as we are always more than willing to take your order over the phone, or even add an addition onto your existing order. We like to make your shopping experience as simple and easy as possible!