It took quite a bit of searching in back issues of "Bee Culture", but I finally found the ad for MDA Splitters (corregated cardboard boxes for putting up splits/nucs). MDA splitters also come in corregated plastic (more durable and more expensive). I have never used MDA splitters so I cannot offer personal testimony other than I saw an MDA splitter demonstration at EAS last summer and I was impressed with the product. MDA Splitter PO Box 9552 Wyoming, MI 49509 (616) 241-3235 [log in to unmask] Aaron Morris - I think, therefore I bee!