Walnuts with shell (not kernels) as shown in the figure. Due to the shell these can be stored for longer periods unlike the klernels.The shell is a softer one and can be easily cracked. The percentage of kernel yield on breaking will vary between 40% - 50%. That is if you break one Kg of these walnuts you may get 400 to 500 gm of kernels. Please note that this is just an aproximate number and it may vary depending on season and crop.