Hi I'm looking for a product that is better than the ones on the market today, I would like to improve the stickers very much because the customers especially of Amazon complain because they come off easily. Also the magnet and all the plastic parts I would like more resistant and excellent quality, the magnet if it falls must not break or split into two pieces.Also the magnet must unlock the mechanism quickly and easily for the adult.I would like a quote for 500 pieces in DDP to be shipped to Amazon Italy Via della Meccanica snc Passo Corese (RI), Rieti 02032 - ITALY.Thank you Show More