They come individually wrapped in plastic bags and they are decent quality. The springs are long and soft and work very well. The metal parts connecting the individual cells are tight and make a solid appearance. The black plastic has decent thickness and stability. In contrast to the images, the battery holders have four mounting holes, one in each cell holder. The wires are thin, but they'll do the job. They are crimped to the brass endpieces of the cell holders. The total resistance of all brass pieces, springs and wires appears to be about 0.2 ohms. That reading might be inaccurate as my multimeter struggles with such low values due to the resistance of the test leads.

They come individually wrapped in plastic bags and they are decent quality. The springs are long and soft and work very well. The metal parts connecting the individual cells are tight and make a solid appearance. The black plastic has decent thickness and stability. In contrast to the images, the battery holders have four mounting holes, one in each cell holder. The wires are thin, but they'll do the job. They are crimped to the brass endpieces of the cell holders. The total resistance of all brass pieces, springs and wires appears to be about 0.2 ohms. That reading might be inaccurate as my multimeter struggles with such low values due to the resistance of the test leads.

They come individually wrapped in plastic bags and they are decent quality. The springs are long and soft and work very well. The metal parts connecting the individual cells are tight and make a solid appearance. The black plastic has decent thickness and stability. In contrast to the images, the battery holders have four mounting holes, one in each cell holder. The wires are thin, but they'll do the job. They are crimped to the brass endpieces of the cell holders. The total resistance of all brass pieces, springs and wires appears to be about 0.2 ohms. That reading might be inaccurate as my multimeter struggles with such low values due to the resistance of the test leads.

ok

ok

ok

All perfect

All perfect

All perfect

great pack

great pack

great pack

I'm using these in several of my DIY projects.

I'm using these in several of my DIY projects.

I'm using these in several of my DIY projects.

Nice product

Nice product

Nice product

good product

good product

good product

great product.

great product.

great product.

Good product

Good product

Good product

Great for kids science classes at school

Great for kids science classes at school

Great for kids science classes at school