Personal effects including: binoculars, cameras, and film may be imported temporarily free of duty. A customs bond may be demanded from visitors bringing in video/filming equipment, radios, tape recorders and musical instruments to ensure the goods are re-exported. Firearms require a special permit. Liquor (1 pint) tobacco (200 cigarettes, 50 cigars or 250 grams) are tax free for individuals of 16 years and older. Visitors buying valuable gems, skin articles, makonde carvings and other local handcrafts must keep cash sales receipts for presentation to customs officials on departure.