Champion Sports Pro Fold Up Sock Style Screen 80x 80 fold up sock style screen with 54 sock for collecting thrown or batted baseballs and softballs. Durable steel tube frame 1 1/2 x 1.2 mm with 60-ply 1 3/4 PE mesh netting. Sock opens to remove balls into a bag or bucket. Folds up in seconds. Easy to assemble.