Useful life hacks

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Smart New Ideas
90 degree self-locking folding hinge
The thickened material is visible, firm and durable, safe and stable Gently press the spring opening button to unlock and return to the 0 degrees folding state. If you need to unlock it, you can gently press the spring button to unlock it easily Folding hinges are very suitable for building wooden tables and have locking legs (easy to bend when unlocked)