JB-4® Plastic Block Holders

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Catalog No. Packaging Size Price Quantity
In Stock
Ships in 1-3 business days. Updated daily.

Out of Stock
Ships once in stock. More on the way.

Upon Request
Typically ships within 1 month. Will stock only when ordered. Cancellation restrictions apply.
15899-50 50 holders
In Stock: > 10
15899-100 100 holders
In Stock: > 10


Easy to store plastic block holders for resin. Matte surface for easy marking and a large center hole to prevent bubble formation. Block Holders fit securely onto molding cup tray cavities. Attach to Polysciences' reusable chucks designed for commonly used microtomes. Similar to EBH-2 Block Holder.

MSDS / Technical Data Sheets / Product Literature