Unable To Cast To Dictionary

Hello, I am trying to make a arm that stretches back then goes forward to punch similar to One Piece(Anime). Im trying to clone a part then tween it but it says unable to cast to dictionary on LINE 36.

reference picture for non anime fans to see what im trying to create down below

images (2)

see how the arm stretches

Try tweening the color instead of brickcolor

Does not look like its working thx though

Size cannot be 3 numbers, Instead it needs to be a Vector3

The tween now thinks you have 4 Inputs, Instead of your 2

1 Like