Super Magnet Bar Series Round-Type Strong Magnet Bar at Competitive Prices Company: Ningbo Mingrui Magnetic Material Co.,Ltd. (NB.MR.) Assembled with several round-type magnets that can produce the most powerful magnetic field (up to 12,000 gauss) This strong bar magnet is used to select iron from other metals in recycling industries Measurements; High quality ;Competitive price 25 x 100 (D x L); 25 x 300 (D x L);25 x 500 (D x L) ;25 x 600 (D x L); 25 x 1000 (D x L); 25 x 1500 (D x L);