Gueevin Mason Bee Nesting Tubes — 400 Pack 6 in x 5/16 in Paperboard Inserts for Bee Hotels

Gueevin 400-piece mason beehive tubes are 6 inches long, 5/16" diameter cardboard nesting inserts designed to expand or replenish solitary bee hotels and boost pollination in gardens.

These compact paper tubes provide ready-made nesting cavities for solitary pollinators such as mason bees, making it easy to outfit or repair bee hotels, condos, or DIY nest boxes. Manufactured from sturdy paperboard, each tube is cut to a standard 15 cm (6 in) length with an internal diameter around 8 mm (5/16 in), a size widely accepted by many species of solitary bees. The pack of 400 tubes supplies enough inserts for multiple nests, seasonal replacements, or sharing with fellow gardeners and beekeepers.

How do these tubes fit into an existing bee hotel or nesting block?

The tubes slide into most modular bee houses and replace worn or soiled inserts without tools. If a tube is slightly too long for a cavity, it can be trimmed cleanly to fit; short lengths can be grouped in a compartment to provide the correct depth for nesting females.

• Standard 6" length fits many commercial and DIY bee condos.
• 5/16" (8 mm) inner diameter suits common mason bee species.
• Paperboard construction compresses slightly for snug fits.
• Trim-to-fit for atypical house depths.

Are these nesting tubes durable and weather resistant?

Made from dense paperboard, the tubes resist crushing and retain shape when kept dry and sheltered. For outdoor use, install tubes inside a protected housing or under eaves to minimize direct rain exposure; periodically replace tubes each season for hygiene and longevity.

• Sturdy paper material resists deformation when dry.
• Best used inside covered bee hotels or well-shaded mounting points.
• Replace annually to reduce pests and disease buildup.
• Compatible with simple protective measures like screens or roofs.

How do these tubes support pollination in a garden?

Providing nesting sites attracts solitary bees that forage locally, increasing pollination for fruit trees, vegetables, and flowering ornamentals. A cluster of tubes in close proximity helps females nest and lay eggs near abundant floral resources, which can enhance fruit set and garden productivity over the season.

• Encourages local solitary bee populations to establish nearby.
• Closest-foraging bees improve pollination efficiency for plants.
• 400 tubes allow multiple nests across the property or sharing.
• Works well near early-spring blossoms favored by mason bees.

How many tubes do I need and how should I manage them?

A single small bee condo may use 20–50 tubes, so a 400-piece pack supplies many houses or seasonal changes. Rotate or replace tubes yearly, and store unused tubes in a dry, ventilated place until needed to maintain their shape and cleanliness.

• Estimate 20–50 tubes per small to medium bee house.
• Use the 400-pack to outfit multiple boxes or for replacements.
• Store extras dry and flat to prevent crushing.
• Remove and replace soiled tubes each season for hygiene.

Who is this for: Gardeners, backyard fruit growers, pollinator advocates, hobby beekeepers and educators who maintain solitary bee hotels and want an affordable, bulk supply of standardized nesting tubes. The Gueevin 400-pack is practical for community gardens, schools, small orchards, or anyone building or repairing multiple nest boxes and seeking an easy-to-install, species-appropriate nesting insert.