Replacement Tubes for Mason Bee Nest Soil Testing Supplies Napkins are pre-shrunk

Napkins are pre-shrunk

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4 oz package

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Replacement Tubes for Mason Bee Nest Soil Testing Supplies Napkins are pre-shrunkTry to provide fresh nesting tubes for your Mason Bees, to replace tubes that have been used last year. This helps protect against a buildup of parasitic mites that can carry over in used tubes. Unused tubes are still good, of course. Each tube is 6" long x 5 16" diameter. Approximately 50 tubes per bag.