after opening5pcs light,5 times effect--the most popular home use mini lightten minutes of countdown is supported--convient for home useCP/HP/Non Peroxide are availableCE--- according to your order,the private packing is also available design by yourself!!!!we also supply whitening lights * Whitening gels *pens *whitening home use kits *salon kits *mouth trays *retractors *custom labelingfor further details on all the specialized products offered just contact me