Custom Corrugated Paper Box For Building Block, this is a tuck end box style, three layers corrugated material, 250gsm duplex board+120gsm corrugated paper-B flute+120gsm kraft paper. CMYK offset printing with varnish, used for toys. Our MOQ for this type of box is 500 pieces, and Production Lead Time is 7 to 10 business days. Flat packing flexible in Different Shipping Options. We offer Delivery to Door Service (DDU terms).