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Rainbow Spools

Rainbow Spools - Up to 4 colors in a single spool!

A HartSmart Products original--PETG and PLA spools that have been run through our splicing machine to produce a single strand of continuous filament that contains as many as 4 different colors in random or patterned splices on a ~700g spool. 

The colors are random for online orders, but can be chosen for in-store purchases.

We will also take requests for any specific color combinations!

NOTE: This is an experimental product and HSP does not provide any guarantees or refunds for issues encountered when using this product. Availability is limited.


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