This 100% seed block is excellent for squirrel prone areas, as squirrels generally don't like safflower. These blocks are preferred by cardinals, grosbeaks and more, where grackles, sparrows and starlings generally don't like safflower. The golden safflower seed is softer than traditional safflower, so will attract a great number of birds. Fits the Mr.Bird NeatFeeder XL or any platform feeder, it can't be kicked all over the place like lose seed can. Large size lasts a long time and attracts loads of birds. No waste, no mess, never melt. Attracts birds much more quickly than suet and without the problem of melting in the summer heat. Great for year-round bird feeding. 1 lb. 10 oz.