1Sale offers Tacklife Retractable Utility Knife, Safety Box Cutter with 5 pcs SK5 Blades, Automatic Retraction Patent Design, Quick Change Blades, Zinc Alloy+TPR Body -SKH01 for $4.94 (orig. $14.97) +Free Shipping

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 We aim to manufacture the best products that inspire our consumers to live a more convenient, secure lifestyle. We have our professional products monitoring team to focus on every single detail that matters to you and develop well-made, portable, exquisite products.

• TACKLIFE utility knife has a patented design of automatic retraction.
• Even if the actuator is still at extending position, the blade retracts automatically when it loses contact with workpiece being cut.
• It's safer to use. Very suitable for families with children.

How to exchange the blade:

• Press down front end of the pyramid-shaped button,extend dull blade forward all the way to replace by new blade.