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1. Require many different tools to assemble the products.
2. Product structure tends to be relatively complicated, thus inconvenient to assemble and often time consuming.
3. Assembled products sometimes appear unstable and wobbly.
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1. No tools required.
2. Extremely easy and convenient to assemble and disassemble.
3. Take very little time and efforts.
4. Assembled products are very stable and beautiful.
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