Most children do not have the dexterity or muscle control to use manual can openers. Avoid frustration with manual openers and get this child magical can opener. My granddaughters loved to use this. But be careful as your young ones may open all the cans in your house...while you're watching your favorite show!!!
I have used both 2 and 3 battery models. They just don't seem to have the power and struggle to open cans. Plus the batteries need changing after just a few cans. Don't buy anything less than the 4 battery model as you will not be happy with the performance. This is the super power model with not 2 not 3 but 4 batteries.