Uni-ball Signo RT1 My Bujo Retractable Gel Pens 0.7mm Assorted Pack of 21

They are not published. The price list names the pack Assorted and lists no colours, and uni-ball publishes no My Bujo page. We do not list colours we cannot verify.

We give 0.7mm on the basis of Mega's earlier listing and uni-ball's 2026 catalogue, which lists the RT1 variant UMN155-07 at 0.7mm. The price list gives no width for the wallet itself.

uni-ball does not say. The price list names the wallet Signo RT1, and the RT1 page covers single pens only. We make no claim about whether the colours or ink match the single pens.

Yes. The price list codes the wallet as retractable (RTRBL), and uni-ball's page describes the RT1 as a retractable gel ink rollerball pen.

uni-ball publishes no page for this pack and no ink resistance claim for it, so we make none.

We do not state one. uni-ball publishes no refill code for the RT1.

21, per the Mitsubishi Pencil Australia price list.

Not one we can attach. uni-ball's safety data sheet page lists 21 documents and none is named for the RT1 or these wallets, so we do not state a hazard classification for them.

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