☰ mtdb > Tricks > Trick< Back to all tricksREFILL SWB Replacement Kit Permalink: mtdb.co/?REFILLSWBReplacementKit Creator: Anton Corradin A Replacement Kit with 10 white - 12 x 16 envelopes for SWB (Self Writing Blackboard) Trick by Anton Corradin. Buy From: REVIEWS No Reviews Yet. about | login | register | dealers | tricks | creators | contact |